React Native(RN) is a cross-platform development tool that endeavours the ideal "write once and run everywhere". Here records my experiences in learning RN.

Solved Problems

This section exclusively records what I have learnt that RN can solve.

Code Re-use across Android-iOS-Web

The basic functionality of RN is to reuse codes in the same app built for different platforms. The basic syntax for the cross-platform codes is JSX.

Light-weight Development Environment(Expo)

If all the build processes are run locally, an enormous amount of toolchains are required to be installed locally, e.g. Android/iOS SDK. Expo is a generous platform that allows everyone to build apps without a complete local environment. The most useful commands are:

• expo build:android: can also build ios app and web bundles

• expo start:web: can also start development server for android and iOS

• note 1: I usually use expo start:web -m tunnel as I believe that the tunnel mode allows the server to be masked by forward proxies

• note 2: To run the web server on a custom port, set the environment variable WEB_PORT to the desired port. to the desired port.